<template>
  <el-breadcrumb
    class="breadcrumb"
    separator="/"
  >
    <transition-group name="breadcrumb">
      <el-breadcrumb-item
        v-for="(item, index) in breadcrumbData"
        :key="item.path"
      >
        <!-- 不可点击项 如果index等于breadcrumbData最后一个就是不可点击项-->
        <span
          v-if="index === breadcrumbData.length - 1"
          class="no-redirect"
          >{{ generateTitle(item.meta.title) }}</span>
        <!-- 可点击项 -->
        <a
          v-else
          class="redirect"
          @click.prevent="onLinkClick(item)"
          >{{ generateTitle(item.meta.title) }}</a>
      </el-breadcrumb-item>
    </transition-group>
  </el-breadcrumb>
</template>

<script setup>
import { ref, watch } from "vue";
import { useRoute, useRouter } from "vue-router";
import { useStore } from "vuex";
import { generateTitle } from '@/utils/i18n'

const route = useRoute();
const breadcrumbData = ref([]);
const getBreadcrumbData = () => {
  console.log("route.matched:", route.matched);
  // 我们认为只要有meta.title就可以在面包屑导航展示
  breadcrumbData.value = route.matched.filter(
      (item) => item.meta && item.meta.title
  );
  console.log(breadcrumbData.value);
};

watch(
  route,
  () => {
    getBreadcrumbData();
  },
  {
    immediate: true
  }
);

// 处理点击事件
const router = useRouter()
const onLinkClick = item => {
  console.log(item)
  router.push(item.path)
}

// 将来需要进行主题替换，所以这里获取下动态样式
const store = useStore()
// eslint-disable-next-line
const linkHoverColor = ref(store.getters.cssVar.menuBg)
</script>

<style lang="scss" scoped>
.breadcrumb {
  display: inline-block;
  font-size: 14px;
  line-height: 50px;
  margin-left: 8px;

  :deep(.no-redirect) {
    color: #97a8be;
    cursor: text;
  }
  .redirect {
    color: #666;
    font-weight: 600;
  }

  .redirect:hover {
    color: v-bind(linkHoverColor);
  }
}
</style>
